Just an observation: If the heat block needs a silicone sock, it will influence the air flow. So you might need model it and change the parameters to direct the air further down
Very interested in your channel! Would like to see the smoke test and other things but couldn't find the videos on your channel. Maybe I'm overlooking them? Thanks and keep up the great work
Very interesting conception. The filament is melted in nozzle, coming off down, outside and should be still good melted enough to good stick to the previous layer of the print .... My question is : if you attack too high on the nozzle, the cold air will lower the temperature down of the melted filament, maybe too early before it's locked to the previous layer, so it can make the print weak 🤔 ? Have you tested the print for the strength before and after use the new cooling system ? I think , what if the cooling air is attacking more down and on the already locked 🔒 new layer to make it hard faster ?? Ps ..... how do you simulating the air flow ? Thank you for any info
Jeg ambefale at.. Ah I will write in english so other can read. Anyway.. I would approach "tornado" way.. By that I meant I would use 3 tiny pipes (rør) which would spin air and leaving hot end relatively untouched. The air would be pushed by kompresor. The bigger difference needs to be done in simulation for heated chamber from 40c°-100c°. We noticed that even in lower chamber temperatures all the settings changes quite drastically. To that end I was thinking to add controllable air in/out port to heated chamber /enclosure.
What I got: - Design Parameters: Inlet size - outlet size - attack angle - opening offset - distance form nozzle - having the openings of separates less turbulence than having them aligned as aligned creates lots of disturbance - horizontal attack angle might cool the nozzle
Thank you Andy. I am still working on optimizing the fanduct and currently have been prototyping a bunch of variants to test this live. The results are very surprising as what I thought would be the best from the analyzes is not. I will release a video on these findings and also release the Toolhead when done.
Curious, why did you go with the split flow from each side, surely the flow just cancels itself at the point of the nozzle? I've been trying to find testing info on different duct configurations in practice but finding frustratingly little :(. My current setup has flow from one side, and it's true there is a problem if there is an overhang on the other side of the nozzle from the duct exit, but I've yet to see any testing that shows exits pointing in from either side - or even all around the nozzle, as some people have designed - actually improves things. My immediate reaction is that the nozzle itself will have relatively static air flow??!
It would be great if you could do a tutorial video on SimScale, or at least a quick walk through for your SimScale setup for this project. I am working my own part cooling solution and want to simulate more and print less to find an optimal solution. Thanks for this video by the way ... it has helped my design already.
Very impressive! I've got a few questions though, I've got a delta printer so it's a very different design to your corexy. I'm trying to think of ways that would be possible to reduce the weight and allow me to mount it to the effector. Also what fans are you using for this? Normal 4020 fans? I've currently got 5015 fans so I'd imagine this fan duct wouldn't work quite properly so I might have to redesign it slightly for my needs.
I don't know how this would work on a delta effector. I know someone used just the extruder but not how it works. The current fans are only 3010 blowers. My design is minimized so I can not go much beyond 4010 fans unless getting less y travel
@@PRO3DESIGN check out 5.05 in this video by Major Hardware. He is using it in lots of his videos on viewer’s fans. ua-cam.com/video/YwGCaQDT2Gg/v-deo.html
So far I only have the weight of the printed parts but also the complete Mjølnir extruder. They together weigh 226 grams in the 5:1 geared extruder and 240 grams with the 3:1 geared extruder
@@PRO3DESIGN I’ve been working on a redesign of fan ducts myself. I used your angles and measurements to retweak the output. It even looks better than the 30° that I had. Thanks for the video.
Just an observation: If the heat block needs a silicone sock, it will influence the air flow. So you might need model it and change the parameters to direct the air further down
Wow that is a very good observation! I will definitely do that. Thanks for the input Peter
Excellent work and thank you for your continuous contributions to our Community!
Very interested in your channel! Would like to see the smoke test and other things but couldn't find the videos on your channel.
Maybe I'm overlooking them?
Thanks and keep up the great work
Nerd away, very good content. I have often wondered if offsetting would be more beneficial. I do really like the compact design.
Looks really good, simscale seems like a really good solution.
Thanks Jacob. I like SimScale and it does not occupy my processor.
Very interesting conception.
The filament is melted in nozzle, coming off down, outside and should be still good melted enough to good stick to the previous layer of the print ....
My question is : if you attack too high on the nozzle, the cold air will lower the temperature down of the melted filament, maybe too early before it's locked to the previous layer, so it can make the print weak 🤔 ?
Have you tested the print for the strength before and after use the new cooling system ?
I think , what if the cooling air is attacking more down and on the already locked 🔒 new layer to make it hard faster ??
Ps ..... how do you simulating the air flow ?
Thank you for any info
Very nice, waiting final release
Next week for sure
Thanks for the video! This has given me the _exact_ foundation I need to make my own design.
Jeg ambefale at.. Ah I will write in english so other can read. Anyway.. I would approach "tornado" way.. By that I meant I would use 3 tiny pipes (rør) which would spin air and leaving hot end relatively untouched. The air would be pushed by kompresor.
The bigger difference needs to be done in simulation for heated chamber from 40c°-100c°.
We noticed that even in lower chamber temperatures all the settings changes quite drastically. To that end I was thinking to add controllable air in/out port to heated chamber /enclosure.
I guess you have a point. I dont want to add the complexity of a pump to this solution as stock. It could be a nice upgrade for those in need
What I got:
- Design Parameters: Inlet size - outlet size - attack angle - opening offset - distance form nozzle
- having the openings of separates less turbulence than having them aligned as aligned creates lots of disturbance
- horizontal attack angle might cool the nozzle
This is very good clip. Deserve like!
Superb video ! I love these sort of videos - to enlarge my general sense of what happens with a nozzle . Subscribed !!!
Thank you Jonny for subscription and comment. Stay tuned for more detailed content
Great video man, really makes me want to try some simulating. I'm really looking forward to see what you come out with next!
Thank you Andy. I am still working on optimizing the fanduct and currently have been prototyping a bunch of variants to test this live. The results are very surprising as what I thought would be the best from the analyzes is not. I will release a video on these findings and also release the Toolhead when done.
This is an incredibly helpful video! Thank you!
My geekdar is blaring! Love it, Go #14! :>
Thanks heavy. I will test 13 and 14 and then see
hi if you put turning vains in the path of the air i think the flow would improve i have a drawing but not sure how to get it to you
👍👍amazing, there is a lot of work into this ! that will help me a lot thanks 👍👍
Curious, why did you go with the split flow from each side, surely the flow just cancels itself at the point of the nozzle? I've been trying to find testing info on different duct configurations in practice but finding frustratingly little :(. My current setup has flow from one side, and it's true there is a problem if there is an overhang on the other side of the nozzle from the duct exit, but I've yet to see any testing that shows exits pointing in from either side - or even all around the nozzle, as some people have designed - actually improves things. My immediate reaction is that the nozzle itself will have relatively static air flow??!
Are you adding an inner fillet in the duct also? Round corners should give less resistance
Oh yes definitely. I do have a filler inside
Nice Job 👏
Thanks for watching
It would be great if you could do a tutorial video on SimScale, or at least a quick walk through for your SimScale setup for this project. I am working my own part cooling solution and want to simulate more and print less to find an optimal solution. Thanks for this video by the way ... it has helped my design already.
Very impressive! I've got a few questions though, I've got a delta printer so it's a very different design to your corexy. I'm trying to think of ways that would be possible to reduce the weight and allow me to mount it to the effector.
Also what fans are you using for this? Normal 4020 fans? I've currently got 5015 fans so I'd imagine this fan duct wouldn't work quite properly so I might have to redesign it slightly for my needs.
I don't know how this would work on a delta effector. I know someone used just the extruder but not how it works. The current fans are only 3010 blowers. My design is minimized so I can not go much beyond 4010 fans unless getting less y travel
@@PRO3DESIGN thanks, maybe I'll try and design my own fan ducts. Worth a ask. Good luck with your printer!
good work !
Thank you Vez. I like your content to
Great content! Looking forward to see reality vs simulation with the help of smoke.
Thanks Lars. I struggle finding some smoke sticks or something like that to use in the testing. Do you know something I can use
@@PRO3DESIGN check out 5.05 in this video by Major Hardware. He is using it in lots of his videos on viewer’s fans. ua-cam.com/video/YwGCaQDT2Gg/v-deo.html
Very nice! Did you already calculate the whole mass of the extruder incl. fans, shrouds etc?
So far I only have the weight of the printed parts but also the complete Mjølnir extruder. They together weigh 226 grams in the 5:1 geared extruder and 240 grams with the 3:1 geared extruder
So how did it perform??? I mean in the real world.
It is a little weak with the 2 small fans but else ok
I like your work 👍
Thank you boss!
I´m impressed
Thank you Martin. Lots of work
Good info, thanks.
13.5mm
Haha.. Nice
Nerds Rule!
Thank you very much for the feedback! Best Roy
rare to see CFD
Would airflow not be improved with curves rather than hard corners inside?
I can only assume curved is better yes. I do have curved on the model now. I do consider upping to 4010. 3010 is a little bit weak
@@PRO3DESIGN I’ve been working on a redesign of fan ducts myself. I used your angles and measurements to retweak the output. It even looks better than the 30° that I had. Thanks for the video.